Using a number of research methods – including analysing large linked national datasets, surveys, focus groups and interviews – the team will assess which quality indicators are valued by service users and clinicians, for example improvements in outcomes, better and more equitable access to care, and distance to provider. They will then derive QALY (quality-adjusted life year) weightings for these different aspects in order to assess efficiency, using a QALY framework. This will enable the derivation of a cost-effectiveness plane for mental health trusts to identify high-quality, low-cost providers and further examine factors that are associated with cost-effectiveness.